Boston時間
19:30:33
日出: 08:12:40 
日落: 15:56:3103:30:33
22:30:33
16:30:33
01:00:33
13:30:33
03:30:33
00:30:33
03:30:33
03:30:33
01:00:33
22:30:33
03:30:33
01:30:33
04:30:33
16:30:33
Boston與主要城市的時差
+7
+7
+7
+6.5
+6
+6
+6
+6
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5
+5
+4.5
+4
+3.5
+3
+3
+3
+3
+3
+3
+3
+2
+2
+2
+2
+1
+1
+1
+1
+1
+1
+1
+0
+0
-3
-3
-3
-3
-4
-5
-5
-5
-6
-8